insightstudy.kr - dns.ninja

`insightstudy.kr`

DNSSEC	⚠️ Not signed
A	13.226.238.18^{🇺🇸 Amazon13.226.232.0/21 - Cloudfront}
		PTR	`server-13-226-238-18.iad61.r.cloudfront.net`
A	13.226.238.41^{🇺🇸 Amazon13.226.232.0/21 - Cloudfront}
A	13.226.238.74^{🇺🇸 Amazon13.226.232.0/21 - Cloudfront}
A	13.226.238.83^{🇺🇸 Amazon13.226.232.0/21 - Cloudfront}
NS	`ans1.hostcocoa.com` ⭐
		A	205.251.192.117^{🇺🇸 Amazon205.251.192.0/24 prefix}
			PTR	`ns-117.awsdns-14.com`
NS	`ans2.hostcocoa.com`
		A	205.251.195.46^{🇺🇸 Amazon205.251.195.0/24 prefix}
			PTR	`ns-814.awsdns-37.net`
NS	`ans3.hostcocoa.com`
		A	205.251.197.133^{🇺🇸 Amazon205.251.197.0/24 prefix}
			PTR	`ns-1413.awsdns-48.org`
NS	`ans4.hostcocoa.com`
		A	205.251.198.221^{🇺🇸 Amazon205.251.198.0/24 prefix}
			PTR	`ns-1757.awsdns-27.co.uk`
MX	`smtp.google.com` ⭐
		A	2607:f8b0:4004:c21::1a^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`pe-in-f26.1e100.net`
		A	2607:f8b0:4004:c21::1b^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`pe-in-f27.1e100.net`
		A	2607:f8b0:4004:c25::1a^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`yuiadtq-in-f26.1e100.net`
		A	2607:f8b0:4004:c29::1a^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`yuiadum-in-f26.1e100.net`
		A	64.233.180.26^{🇺🇸 Google64.233.180.0/24}
			PTR	`on-in-f26.1e100.net`
			PTR	`pe-in-f26.1e100.net`
		A	64.233.180.27^{🇺🇸 Google64.233.180.0/24}
			PTR	`on-in-f27.1e100.net`
			PTR	`pe-in-f27.1e100.net`
		A	173.194.45.26^{🇺🇸 Google173.194.0.0/16}
			PTR	`yuiadum-in-f26.1e100.net`
		A	173.194.45.27^{🇺🇸 Google173.194.0.0/16}
			PTR	`yuiadum-in-f27.1e100.net`
		A	192.178.218.27^{🇺🇸 Google192.178.218.0/24}
			PTR	`yuiadtq-in-f27.1e100.net`
TXT	`google-site-verification=q94sScSGJTxYVdPpGtNhMEc8VgHVzr0LXEI-Us104aI`
TXT	`v=spf1 ip4:52.79.92.223 ~all`
SOA	`ans1.hostcocoa.com`awsdns-hostmaster@amazon.com serial=1

`kr`

	DNSSEC	🔒 Signed (DS record present)
	NS	`g.dns.kr` ⭐
	NS	`b.dns.kr`
	NS	`c.dns.kr`
	NS	`d.dns.kr`
	NS	`e.dns.kr`
	NS	`f.dns.kr`
	SOA	`g.dns.kr`domain-manager@nic.or.kr serial=2608120764

Same first word

insightstudy.kr

DNS History

45 records (9 active, 36 former)

●NSans1.hostcocoa.com2026-04-19 → 2026-08-12 · 2 obs

● 2026-04-19 08:56:26
● 2026-08-12 05:57:06

●NSans2.hostcocoa.com2026-04-19 → 2026-08-12 · 2 obs

● 2026-04-19 08:56:26
● 2026-08-12 05:57:06

●NSans3.hostcocoa.com2026-04-19 → 2026-08-12 · 2 obs

● 2026-04-19 08:56:26
● 2026-08-12 05:57:06

●NSans4.hostcocoa.com2026-04-19 → 2026-08-12 · 2 obs

● 2026-04-19 08:56:26
● 2026-08-12 05:57:06

●MXsmtp.google.com2026-04-19 → 2026-08-12 · 4 obs

● 2026-04-19 08:56:26
○ 2026-06-27 04:00:54
● 2026-06-27 19:12:14
● 2026-08-12 05:57:06

○A13.225.47.122026-05-19 → 2026-07-02 · 6 obs

○ 2026-05-15 09:23:06
● 2026-05-19 18:25:12
○ 2026-06-01 03:00:18
● 2026-07-02 16:09:04
○ 2026-07-03 16:20:52
○ 2026-08-12 05:57:06

○A13.225.47.1292026-05-19 → 2026-07-02 · 6 obs

○ 2026-05-15 09:23:06
● 2026-05-19 18:25:12
○ 2026-06-01 03:00:18
● 2026-07-02 16:09:04
○ 2026-07-03 16:20:52
○ 2026-08-12 05:57:06

○A13.225.47.232026-05-19 → 2026-07-02 · 6 obs

○ 2026-05-15 09:23:06
● 2026-05-19 18:25:12
○ 2026-06-01 03:00:18
● 2026-07-02 16:09:04
○ 2026-07-03 16:20:52
○ 2026-08-12 05:57:06

○A13.225.47.842026-05-19 → 2026-07-02 · 6 obs

○ 2026-05-15 09:23:06
● 2026-05-19 18:25:12
○ 2026-06-01 03:00:18
● 2026-07-02 16:09:04
○ 2026-07-03 16:20:52
○ 2026-08-12 05:57:06

●A13.226.238.182026-06-16 → 2026-08-12 · 14 obs

○ 2026-06-12 14:26:00
● 2026-06-16 15:42:08
● 2026-06-17 09:37:06
○ 2026-06-17 11:02:40
● 2026-08-06 06:33:44
○ 2026-08-06 23:12:58
● 2026-08-07 18:08:54
○ 2026-08-07 19:11:22
● 2026-08-08 11:57:40
○ 2026-08-08 13:00:38
● 2026-08-08 14:29:42
○ 2026-08-09 10:23:30
● 2026-08-12 05:57:02
● 2026-08-12 05:57:06

●A13.226.238.412026-06-16 → 2026-08-12 · 14 obs

●A13.226.238.742026-06-16 → 2026-08-12 · 14 obs

●A13.226.238.832026-06-16 → 2026-08-12 · 14 obs

○A13.33.109.1042026-04-22 → 2026-08-05 · 19 obs

○ 2026-04-19 17:37:48
● 2026-04-22 05:33:10
○ 2026-04-22 11:07:06
○ 2026-04-23 18:18:34
● 2026-04-28 17:51:50
○ 2026-04-28 19:35:26
○ 2026-04-29 03:24:38
● 2026-04-29 05:36:52
○ 2026-04-29 06:29:32
○ 2026-04-29 16:33:04
● 2026-05-09 00:38:20
○ 2026-05-09 04:38:06
○ 2026-05-14 23:29:18
● 2026-05-15 01:43:50
● 2026-05-15 06:25:12
○ 2026-05-15 07:51:40
● 2026-08-05 22:46:40
○ 2026-08-06 01:08:10
○ 2026-08-12 05:57:06

○A13.33.109.1222026-04-22 → 2026-08-05 · 19 obs

○A13.33.109.1292026-04-22 → 2026-08-05 · 19 obs

○A13.33.109.342026-04-22 → 2026-08-05 · 19 obs

○A13.35.107.1292026-07-28 → 2026-08-01 · 20 obs

○ 2026-07-28 12:04:26
● 2026-07-28 18:01:28
○ 2026-07-29 04:02:36
● 2026-07-30 04:07:06
○ 2026-07-30 13:32:32
● 2026-07-30 14:42:24
○ 2026-07-30 16:41:48
● 2026-07-30 23:48:18
○ 2026-07-31 00:38:18
● 2026-07-31 05:52:40
○ 2026-07-31 09:41:24
● 2026-07-31 11:45:34
○ 2026-07-31 19:07:12
● 2026-08-01 05:55:10
○ 2026-08-01 08:18:12
● 2026-08-01 17:58:02
○ 2026-08-01 18:53:32
● 2026-08-01 22:31:26
○ 2026-08-02 05:48:38
○ 2026-08-12 05:57:06

○A13.35.107.272026-07-28 → 2026-08-01 · 20 obs

○A13.35.107.602026-07-28 → 2026-08-01 · 20 obs

○A13.35.107.982026-07-28 → 2026-08-01 · 20 obs

○A18.154.206.1062026-07-29 → 2026-08-09 · 22 obs

○ 2026-07-29 04:02:36
● 2026-07-29 08:08:02
○ 2026-07-30 04:07:06
● 2026-07-30 16:41:48
○ 2026-07-30 19:11:10
● 2026-07-31 00:38:18
○ 2026-07-31 05:52:40
● 2026-07-31 19:07:12
○ 2026-07-31 23:12:52
● 2026-08-01 08:18:12
○ 2026-08-01 17:58:02
● 2026-08-01 18:53:32
○ 2026-08-01 22:31:26
● 2026-08-03 07:18:16
○ 2026-08-03 23:13:46
● 2026-08-04 09:23:00
○ 2026-08-05 22:46:40
● 2026-08-07 19:11:22
○ 2026-08-08 00:26:08
● 2026-08-09 23:15:56
○ 2026-08-10 10:24:32
○ 2026-08-12 05:57:06

○A18.154.206.702026-07-29 → 2026-08-09 · 22 obs

○A18.154.206.782026-07-29 → 2026-08-09 · 22 obs

○A18.154.206.902026-07-29 → 2026-08-09 · 22 obs

○A3.166.160.1142026-04-19 → 2026-08-10 · 56 obs

○ 2026-04-19 08:56:26
● 2026-04-19 17:37:48
○ 2026-04-22 05:33:10
● 2026-04-22 11:07:06
○ 2026-04-23 01:48:02
● 2026-04-23 16:11:36
○ 2026-04-23 18:18:34
○ 2026-04-28 19:35:26
● 2026-04-29 03:24:38
○ 2026-04-29 05:36:52
● 2026-04-29 06:29:32
○ 2026-04-29 16:33:04
○ 2026-05-09 00:38:20
● 2026-05-09 04:38:06
○ 2026-05-09 17:50:00
○ 2026-05-10 12:13:00
● 2026-05-10 12:52:06
○ 2026-05-10 17:07:44
● 2026-05-11 15:27:04
○ 2026-05-11 17:35:32
● 2026-05-14 23:29:18
○ 2026-05-15 01:43:50
○ 2026-05-15 06:25:12
● 2026-05-15 07:51:40
○ 2026-05-15 09:23:06
○ 2026-05-19 18:25:12
● 2026-06-01 03:00:18
● 2026-06-12 14:26:00
○ 2026-06-16 15:42:08
● 2026-07-03 16:20:52
○ 2026-07-28 12:04:26
● 2026-07-30 19:11:10
○ 2026-07-30 23:48:18
● 2026-07-31 09:41:24
○ 2026-07-31 11:45:34
● 2026-07-31 23:12:52
○ 2026-08-01 05:55:10
● 2026-08-02 05:48:38
○ 2026-08-03 07:18:16
● 2026-08-03 23:13:46
○ 2026-08-04 09:23:00
● 2026-08-06 01:08:10
○ 2026-08-06 06:33:44
● 2026-08-06 23:12:58
○ 2026-08-07 15:16:42
● 2026-08-08 00:26:08
○ 2026-08-08 01:45:38
● 2026-08-08 04:26:24
○ 2026-08-08 11:57:40
● 2026-08-08 13:00:38
○ 2026-08-08 14:29:42
● 2026-08-09 10:23:30
○ 2026-08-09 23:15:56
● 2026-08-10 10:24:32
○ 2026-08-11 21:18:58
○ 2026-08-12 05:57:06

○A3.166.160.702026-04-19 → 2026-08-10 · 56 obs

○A3.166.160.752026-04-19 → 2026-08-10 · 56 obs

○A3.166.160.962026-04-19 → 2026-08-10 · 56 obs

○A3.174.113.32026-08-07 → 2026-08-11 · 8 obs

○ 2026-08-06 23:12:58
● 2026-08-07 15:16:42
○ 2026-08-07 18:08:54
● 2026-08-08 01:45:38
○ 2026-08-08 04:26:24
● 2026-08-11 21:18:58
○ 2026-08-12 05:57:02
○ 2026-08-12 05:57:06

○A3.174.113.52026-08-07 → 2026-08-11 · 8 obs

○ 2026-08-06 23:12:58
● 2026-08-07 15:16:42
○ 2026-08-07 18:08:54
● 2026-08-08 01:45:38
○ 2026-08-08 04:26:24
● 2026-08-11 21:18:58
○ 2026-08-12 05:57:02
○ 2026-08-12 05:57:06

○A3.174.113.582026-08-07 → 2026-08-11 · 8 obs

○ 2026-08-06 23:12:58
● 2026-08-07 15:16:42
○ 2026-08-07 18:08:54
● 2026-08-08 01:45:38
○ 2026-08-08 04:26:24
● 2026-08-11 21:18:58
○ 2026-08-12 05:57:02
○ 2026-08-12 05:57:06

○A3.174.113.972026-08-07 → 2026-08-11 · 8 obs

○ 2026-08-06 23:12:58
● 2026-08-07 15:16:42
○ 2026-08-07 18:08:54
● 2026-08-08 01:45:38
○ 2026-08-08 04:26:24
● 2026-08-11 21:18:58
○ 2026-08-12 05:57:02
○ 2026-08-12 05:57:06

○A54.230.201.1212026-04-23 → 2026-06-27 · 29 obs

○ 2026-04-22 11:07:06
● 2026-04-23 01:48:02
○ 2026-04-23 16:11:36
● 2026-04-23 18:18:34
○ 2026-04-28 17:51:50
● 2026-04-28 19:35:26
○ 2026-04-29 03:24:38
○ 2026-04-29 06:29:32
● 2026-04-29 16:33:04
○ 2026-05-09 00:38:20
○ 2026-05-09 04:38:06
● 2026-05-09 17:50:00
● 2026-05-10 12:13:00
○ 2026-05-10 12:52:06
● 2026-05-10 17:07:44
○ 2026-05-11 15:27:04
● 2026-05-11 17:35:32
○ 2026-05-14 23:29:18
○ 2026-05-15 07:51:40
● 2026-05-15 09:23:06
○ 2026-05-19 18:25:12
○ 2026-06-17 09:37:06
● 2026-06-17 11:02:40
○ 2026-06-24 08:28:36
● 2026-06-24 10:10:00
○ 2026-06-27 04:00:54
● 2026-06-27 22:47:40
○ 2026-07-01 15:55:16
○ 2026-08-12 05:57:06

○A54.230.201.612026-04-23 → 2026-06-27 · 29 obs

○A54.230.201.72026-04-23 → 2026-06-27 · 29 obs

○A54.230.201.992026-04-23 → 2026-06-27 · 29 obs

○A54.230.253.1262026-04-19 → 2026-07-30 · 14 obs

● 2026-04-19 08:56:26
○ 2026-04-19 17:37:48
○ 2026-06-17 11:02:40
● 2026-06-24 08:28:36
○ 2026-06-24 10:10:00
● 2026-06-27 19:12:14
○ 2026-06-27 22:47:40
● 2026-07-01 15:55:16
○ 2026-07-02 16:09:04
● 2026-07-29 04:02:36
○ 2026-07-29 08:08:02
● 2026-07-30 13:32:32
○ 2026-07-30 14:42:24
○ 2026-08-12 05:57:06

○A54.230.253.332026-04-19 → 2026-07-30 · 14 obs

○A54.230.253.352026-04-19 → 2026-07-30 · 14 obs

○A54.230.253.632026-04-19 → 2026-07-30 · 14 obs

○A99.86.109.1052026-07-28 → 2026-07-28 · 4 obs

○ 2026-07-03 16:20:52
● 2026-07-28 12:04:26
○ 2026-07-28 18:01:28
○ 2026-08-12 05:57:06

○A99.86.109.382026-07-28 → 2026-07-28 · 4 obs

○ 2026-07-03 16:20:52
● 2026-07-28 12:04:26
○ 2026-07-28 18:01:28
○ 2026-08-12 05:57:06

○A99.86.109.42026-07-28 → 2026-07-28 · 4 obs

○ 2026-07-03 16:20:52
● 2026-07-28 12:04:26
○ 2026-07-28 18:01:28
○ 2026-08-12 05:57:06

○A99.86.109.752026-07-28 → 2026-07-28 · 4 obs

○ 2026-07-03 16:20:52
● 2026-07-28 12:04:26
○ 2026-07-28 18:01:28
○ 2026-08-12 05:57:06

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
kr	g.dns.kr, d.dns.kr, e.dns.kr, b.dns.kr...	-
insightstudy.kr	ans4.hostcocoa.com, ans2.hostcocoa.com, ans1.hostcocoa.com, ans3.hostcocoa.com	-

✅ Authoritative Response

Server:205.251.192.117

NS records: ans4.hostcocoa.com, ans2.hostcocoa.com, ans1.hostcocoa.com, ans3.hostcocoa.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for insightstudy.kr (unsigned zone)

⏱️ Timing

Total: 1581ms | Queries: -

📄 Records

Type	Count	Sample Data
A	4	`13.226.238.74, 13.226.238.41...`
NS	4	`ans1.hostcocoa.com, ans2.hostcocoa.com...`
MX	1	`smtp.google.com (pri: 1)`
TXT	2	`google-site-verification=q94sScSGJTxYVdP, v=spf1 ip4:52.79.92.223 ~all`
SOA	1	`ans1.hostcocoa.com awsdns-hostmaster.ama`

Analysis

IP Addresses

insightstudy.kr directs to four IP numbers, which are 13.226.238.18, 13.226.238.41, 13.226.238.74 and 13.226.238.83.

Additional host names — desertgmcbuick.com, manas.ar, fonts.autodesk.com and two others — share IP numbers with insightstudy.kr.

Name Servers

insightstudy.kr has four authoritative name servers: ans1.hostcocoa.com, ans2.hostcocoa.com, ans3.hostcocoa.com and ans4.hostcocoa.com.

At least some of insightstudy.kr's name servers are shared with other domains, for example 247security.co.kr, bigbearkorea.com, myfuturelab.com and two more.

ans1.hostcocoa.com, ans2.hostcocoa.com, ans3.hostcocoa.com and ans4.hostcocoa.com each resolve to one IP address: ans1.hostcocoa.com resolves to 205.251.192.117, ans2.hostcocoa.com resolves to 205.251.195.46, ans3.hostcocoa.com resolves to 205.251.197.133 and ans4.hostcocoa.com resolves to 205.251.198.221.

Mail Servers

insightstudy.kr has one mail server: smtp.google.com.

insightstudy.kr shares the same mail server setup as other domains, including arteria24.pl, muratsu.com.tr, xoobay.com and two others.

insightstudy.kr shares mail servers — at least in part — with other domains, including dkg.ca, imaginusnorth.com, clovehitch.ca and two others.

These mail servers are frequently used alongside the mail servers alt1.aspmx.l.google.com, alt2.aspmx.l.google.com and alt3.aspmx.l.google.com, plus two others.

smtp.google.com points to 9 IP numbers: 64.233.180.26, 64.233.180.27, 173.194.45.26 and 6 other.